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Electron identification with the ATLAS detector
Electron identification is a crucial input to many ATLAS physics analysis. The electron identification used in ATLAS for run 2 is based on a likelihood discrimination to separate isolated electron candidates from candidates originating from photon conversions, hadron misidentification and heavy flav...
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Lenguaje: | eng |
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2017
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Acceso en línea: | https://dx.doi.org/10.22323/1.314.0769 http://cds.cern.ch/record/2286383 |
_version_ | 1780955975117701120 |
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author | Tarna, Grigore |
author_facet | Tarna, Grigore |
author_sort | Tarna, Grigore |
collection | CERN |
description | Electron identification is a crucial input to many ATLAS physics analysis. The electron identification used in ATLAS for run 2 is based on a likelihood discrimination to separate isolated electron candidates from candidates originating from photon conversions, hadron misidentification and heavy flavor decays. In addition, isolation variables are used as further handles to separate signal and background. The measurement of the efficiencies of the electron identification and isolation cuts are performed with the data using tag and probe techniques with large statistics sample of $Z\rightarrow ee$ and $J/\psi \rightarrow ee$ decays. These measurements performed with pp collisions data at $\sqrt{s}=13$ TeV in 2016 (2015) corresponding to an integrated luminosity of 33.9 (3.2) fb$^{-1}$ of $\sqrt{s}=13$ TeV pp are presented. |
id | cern-2286383 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2017 |
record_format | invenio |
spelling | cern-22863832021-05-03T07:54:26Zdoi:10.22323/1.314.0769http://cds.cern.ch/record/2286383engTarna, GrigoreElectron identification with the ATLAS detectorParticle Physics - ExperimentElectron identification is a crucial input to many ATLAS physics analysis. The electron identification used in ATLAS for run 2 is based on a likelihood discrimination to separate isolated electron candidates from candidates originating from photon conversions, hadron misidentification and heavy flavor decays. In addition, isolation variables are used as further handles to separate signal and background. The measurement of the efficiencies of the electron identification and isolation cuts are performed with the data using tag and probe techniques with large statistics sample of $Z\rightarrow ee$ and $J/\psi \rightarrow ee$ decays. These measurements performed with pp collisions data at $\sqrt{s}=13$ TeV in 2016 (2015) corresponding to an integrated luminosity of 33.9 (3.2) fb$^{-1}$ of $\sqrt{s}=13$ TeV pp are presented.ATL-PHYS-PROC-2017-173oai:cds.cern.ch:22863832017-09-29 |
spellingShingle | Particle Physics - Experiment Tarna, Grigore Electron identification with the ATLAS detector |
title | Electron identification with the ATLAS detector |
title_full | Electron identification with the ATLAS detector |
title_fullStr | Electron identification with the ATLAS detector |
title_full_unstemmed | Electron identification with the ATLAS detector |
title_short | Electron identification with the ATLAS detector |
title_sort | electron identification with the atlas detector |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.22323/1.314.0769 http://cds.cern.ch/record/2286383 |
work_keys_str_mv | AT tarnagrigore electronidentificationwiththeatlasdetector |